Bug 1543315 - part 12: Mark nsIPresShell::DoScrollContentIntoView() as MOZ_CAN_RUN_SCRIPT r=smaug
Now, we can mark `DoScrollContentIntoView()` as `MOZ_CAN_RUN_SCRIPT` and move
it from `nsIPresShell` to `PresShell` with a member.
Differential Revision: https://phabricator.services.mozilla.com/D28321